Liquid Crystal Lens for Multi-View 3D Display Resolution
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Solution Overview
Problem
Conventional autostereoscopic 3D display technologies face challenges in providing multiple vantage points without compromising horizontal resolution, leading to reduced image quality when multiple views are displayed on a single screen.
Innovation Solution
A 2D/3D switchable liquid crystal display apparatus with a liquid crystal lens that can be configured to form different lens units based on applied voltage profiles, allowing for multiple vantage points to be displayed at high resolution without the need for polarizing glasses or headgear, using a driver to control the liquid crystal layer between substrates with variously shaped electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple views are displayed on a single screen in conventional autostereoscopic 3D display, then multiple vantage points are provided, but horizontal resolution is reduced and image quality deteriorates
Solution Approach 1:
The patent implements a liquid crystal lens that can dynamically change its focal length and lens unit configuration based on applied voltage. This allows the display to switch between different 3D viewing modes (single view, multiple views, 2D/3D switching) without compromising resolution, as the lens adapts its optical properties rather than requiring multiple fixed displays
Solution Approach 2:
The liquid crystal lens changes its refractive index and focal length parameters in response to voltage application. By adjusting these optical parameters, the system can provide multiple vantage points while maintaining the original display resolution, as the parameter changes occur in the optical path rather than the pixel array
2Adaptability or versatility
If liquid crystal lens is activated to provide 3D display mode, then autostereoscopic 3D images are achieved, but device complexity increases due to additional electrodes and voltage control requirements
Solution Approach 1:
The liquid crystal lens structure serves multiple functions: it can operate as a 2D display mode (when voltage is off), a single-view 3D mode (when voltage creates a single lens), or a multi-view 3D mode (when voltage creates multiple lens units). This multi-functionality reduces the need for separate hardware configurations for different display modes
Solution Approach 2:
The liquid crystal lens can be segmented into multiple independent lens units through selective voltage application to different electrode regions. This segmentation allows flexible control over the number of viewing zones without requiring physically separate lens components, simplifying the overall device architecture
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables multiple vantage points to be viewed at sufficient resolution levels, maintaining high-quality 3D images while eliminating the need for additional viewing hardware, thus improving user experience and reducing costs.
Implementation Method 1
the refractive indices of the liquid crystal molecules may be changed depending on the positions of the liquid crystal molecules in a direction parallel to the upper and lower substrates bounding the liquid crystal material. As such, light propagating from the display panel may be directionally bent while propagating through the liquid crystal lens
Implementation Method 2
A 2D/3D switchable liquid crystal display apparatus with a liquid crystal lens that can be configured to form different lens units based on applied voltage profiles
Data Source
AI summary
A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position.